User Manual - Page 314

For 2020 Wrangler.

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312 SERVICING AND MAINTENANCE
(Continued)
Checking Oil Level
To ensure proper lubrication of your vehicle's
engine, the engine oil must be maintained at
the correct level. The engine oil level should be
checked five minutes after a warmed up engine
has been shut off.
Checking the oil while the vehicle is on level
ground will improve the accuracy of the oil level
readings. Always maintain the oil level within
the SAFE zone on the dipstick. Adding 1 quart
(0.95 liters) of oil when the reading is at the
bottom of the crosshatch zone will result in a
reading at the top of the crosshatch zone on
these engines.
Adding Washer Fluid
The fluid reservoir for the windshield washers
and the rear window washer (if equipped) is
shared. The fluid reservoir is located in the
engine compartment. Be sure to check the fluid
level at regular intervals. Fill the reservoir with
windshield washer solvent only (not radiator
antifreeze). When refilling the washer fluid
reservoir, take some washer fluid and apply it to
a cloth or towel and wipe clean the wiper
blades; this will help blade performance.
To prevent freeze-up of your windshield washer
system in cold weather, select a solution or
mixture that meets or exceeds the temperature
range of your climate. This rating information
can be found on most washer fluid containers.
Maintenance-Free Battery
Your vehicle is equipped with a mainte-
nance-free battery. You will never have to add
water, nor is periodic maintenance required.
CAUTION!
Overfilling or underfilling the crankcase will
cause aeration or loss of oil pressure. This
could damage your engine.
WARNING!
Commercial windshield washer solvents are
flammable. They could ignite and burn you.
Care must be exercised when filling or
working around the washer solution.
WARNING!
Battery fluid is a corrosive acid solution and
can burn or even blind you. Do not allow
battery fluid to contact your eyes, skin, or
clothing. Do not lean over a battery when
attaching clamps. If acid splashes in eyes
or on skin, flush the area immediately with
large amounts of water. Refer to “Jump
Starting Procedure” in “In Case Of Emer-
gency” for further information.
Battery gas is flammable and explosive.
Keep flame or sparks away from the
battery. Do not use a booster battery or any
other booster source with an output greater
than 12 Volts. Do not allow cable clamps to
touch each other.
Battery posts, terminals, and related acces-
sories contain lead and lead compounds.
Wash hands after handling.
20_JL_OM_EN_USC_t.book Page 312
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